CN2809219Y - Foundation pit anchor rod capable of reclaiming anchor bar - Google Patents
Foundation pit anchor rod capable of reclaiming anchor bar Download PDFInfo
- Publication number
- CN2809219Y CN2809219Y CN 200520059991 CN200520059991U CN2809219Y CN 2809219 Y CN2809219 Y CN 2809219Y CN 200520059991 CN200520059991 CN 200520059991 CN 200520059991 U CN200520059991 U CN 200520059991U CN 2809219 Y CN2809219 Y CN 2809219Y
- Authority
- CN
- China
- Prior art keywords
- dowel
- anchor
- foundation pit
- head
- supporting structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a foundation-ditch supporting anchor rod with a recoverable anchor bar. The utility model is characterized in that the tail end of an anchor bar arranged in an anchor-bar isolating sleeve is connected with an anchor head of which the gripping force is a fixed value, and the head end of the anchor bar is connected with an anchor-bar tensioning head. The utility model has the advantage that a plurality of recoverable anchor bars can be arranged in an anchor rod hole according to the requirement of the magnitude of an anchoring force for supporting a foundation ditch.
Description
Technical field
The utility model relates to the pattern foundation pit supporting structure anchor pole of pattern foundation pit supporting structure anchor pole, particularly a kind of recyclable dowel.
Background technology
In known technology, using anchor pole to carry out pattern foundation pit supporting structure is a kind of foundation pit supporting method commonly used, and its principle is to utilize anchor pole that anchored force is provided, the soil pressure of opposing foundation ditch periphery, and the periphery soil body is stable when reaching excavation of foundation pit.The pattern foundation pit supporting structure anchor pole by anchor bar body (grouting body), dowel (reinforcing bar, dowel, steel pipe etc.), anchoring is first-class forms.During the pattern foundation pit supporting structure anchor bolt construction, use rig to get bolthole on request earlier, insert dowel in the clear Kong Houxiang hole, last cement injection mortar or cement paste are finished anchor bolt construction.After cement mortar to be poured into or cement paste reach requirement of strength, by the anchoring support of soil-baffling structure thing enforcement to foundation ditch.
The pattern foundation pit supporting structure anchor pole of this routine can't reclaim after the pattern foundation pit supporting structure task is finished, and the dowel in the anchor pole will be stayed in the soil body of foundation ditch periphery for a long time, become underground obstacle, have a strong impact on the exploitation in peripheral plot.
Summary of the invention
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of can be after the pattern foundation pit supporting structure task be finished, can implement dowel is carried out recycling, lower engineering cost, and can eliminate underground obstacle, do not influence the pattern foundation pit supporting structure anchor pole of recyclable dowel of the normal exploitation in peripheral plot.
The utility model is achieved in that
A kind of pattern foundation pit supporting structure anchor pole of recyclable dowel, comprise anchorage head 5, press beam 6, soil-baffling structure thing free face 7 and cement mortar 4, also comprise placing the end of the dowel 2 in the dowel separation sleeve 3 to be connected with bond stress definite value anchor head 1, the head end of dowel 2 is connected with dowel tensioning head 8.
---described bond stress definite value anchor head 1 is to be formed by connecting by metallic sheath and dowel extruding.
---described dowel 2 is steel strand, reinforcing bar or steel pipe.
Operating principle of the present utility model is: the dowel end of pattern foundation pit supporting structure anchor structure is connected with bond stress definite value anchor head; It is to be formed by connecting by metallic sheath and dowel extruding, extruding force one timing at extrusion equipment, the size of its bond stress value is decided by the length of metallic sheath, selecting for use of bond stress value can determine by tested numerical value (the bond stress definite value should less than the dowel ultimate strength 80%).The dowel of pattern foundation pit supporting structure anchor pole uses dowel separation sleeve (or select for use and do not have the bonding dowel) that dowel and cement mortar are isolated, dowel total length cement-free mortar parcel, and it is clear and definite to make it to reclaim pulling force; Its value equals the frictional resistance that definite value anchor head bond stress adds dowel and separation sleeve.Anchored force during the work of pattern foundation pit supporting structure anchor pole is got anchor head bond stress value 80%.
The utility model can be inserted many callable dowels according to pattern foundation pit supporting structure anchored force size needs in a bolthole.
The beneficial effects of the utility model are to lower engineering cost greatly, can eliminate underground obstacle and dowel is carried out recycling.
Description of drawings:
Fig. 1 is the schematic diagram of a kind of concrete structure of the utility model.
Fig. 2 is the sectional view of 1-1 position among Fig. 1, illustrates that 1 metallic sheath is connected with 2 extruding, is wrapped in the cement bonded sand slurry 4.
Fig. 3 is the sectional view of 2-2 position among Fig. 1, illustrates that 3 are wrapped in 2,4 and are wrapped in 3, does not directly contact with 2.
In Fig. 1-Fig. 3,1 is bond stress definite value anchor head, and 2 is dowel, and 3 is the reinforcing bar separation sleeve, and 4 is cement mortar, and 5 is anchorage head, and 6 for pressing beam, and 7 is soil-baffling structure thing free face, and 8 is the dowel tensioning head.
The specific embodiment
Consult Fig. 1-Fig. 3 during the pattern foundation pit supporting structure anchor bolt construction, use rig to get bolthole on request earlier, the dowel 2 that then processing is had bond stress anchor head 1 and dowel separation sleeve 3 is inserted in the hole, and the cement injection mortar 4 again, and beam 6 is pressed in construction at last.Implement stretch-draw anchor after treating cement mortar and pressing beam to reach design strength; After treating that the bolt support task is finished, use the punching jack to block dowel tensioning head 8, use dowel to be pulled out and reclaim greater than the pulling force of bond stress definite value anchor head.
Claims (3)
1. the pattern foundation pit supporting structure anchor pole of a recyclable dowel, comprise anchorage head (5), press beam (6), soil-baffling structure thing free face (7) and cement mortar (4), it is characterized in that also comprising placing the end of the dowel (2) in the dowel separation sleeve (3) to be connected with bond stress definite value anchor head (1), the head end of dowel (2) is connected with dowel tensioning head (8).
2. pattern foundation pit supporting structure anchor pole according to claim 1 is characterized in that described bond stress definite value anchor head (1) is to be formed by connecting by metallic sheath and dowel extruding.
3. pattern foundation pit supporting structure anchor pole according to claim 1 is characterized in that described dowel (2) is steel strand, reinforcing bar or steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520059991 CN2809219Y (en) | 2005-06-16 | 2005-06-16 | Foundation pit anchor rod capable of reclaiming anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520059991 CN2809219Y (en) | 2005-06-16 | 2005-06-16 | Foundation pit anchor rod capable of reclaiming anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809219Y true CN2809219Y (en) | 2006-08-23 |
Family
ID=36925403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520059991 Expired - Lifetime CN2809219Y (en) | 2005-06-16 | 2005-06-16 | Foundation pit anchor rod capable of reclaiming anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809219Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505950A (en) * | 2011-10-17 | 2012-06-20 | 李宪奎 | Construction method for recycling self-feeding anchor rods and anchor rod structural components thereof |
| CN105696546A (en) * | 2016-03-25 | 2016-06-22 | 广东水电二局股份有限公司 | Low-consumption underground diaphragm wall and construction method thereof |
| CN113863327A (en) * | 2021-11-22 | 2021-12-31 | 中国地质科学院探矿工艺研究所 | Slipping type recyclable anchor cable and using method thereof |
-
2005
- 2005-06-16 CN CN 200520059991 patent/CN2809219Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505950A (en) * | 2011-10-17 | 2012-06-20 | 李宪奎 | Construction method for recycling self-feeding anchor rods and anchor rod structural components thereof |
| CN105696546A (en) * | 2016-03-25 | 2016-06-22 | 广东水电二局股份有限公司 | Low-consumption underground diaphragm wall and construction method thereof |
| CN113863327A (en) * | 2021-11-22 | 2021-12-31 | 中国地质科学院探矿工艺研究所 | Slipping type recyclable anchor cable and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150616 Granted publication date: 20060823 |